Which of the following commands will NOT update the modify timestamp on the file /tmp/myfile.txt?
Which of the following commands will NOT update the modify timestamp on the file /tmp/myfile.txt?
The 'file /tmp/myfile.txt' command is used only to determine the file type of /tmp/myfile.txt and does not alter its contents or metadata. As a result, it does not update the modify timestamp of the file. All the other commands involve writing to or editing the file, which would change the modify timestamp.
The command that will NOT update the modify timestamp on the file `/tmp/myfile.txt` is: A. `file /tmp/myfile.txt` The `file` command is used to determine the file type of a file and does not modify the contents of the file. Therefore, it does not affect the modify timestamp of the file. The other commands in the list, including the `echo`, `sed`, `touch`, and the second `echo` command, involve reading from, writing to, or modifying the file in some way, which can update the modify timestamp.